A high-pressure-resistant and corrosion-resistant hydraulic sea valve for deep-sea equipment

Abstract

The utility model provides a kind of high-pressure corrosion-resistant hydraulic sea valve for deep-sea equipment, to solve the problems such as poor stability of existing sea valve in deep sea, laborious operation etc., it includes shell, the right end of shell is fixed with head, shell is connected with inlet pipe and outlet pipe, cavity is equipped in shell, valve core is slidably connected in cavity left and right, valve core controls the opening or closing of inlet pipe, the first hydraulic pipe joint that is connected with cavity is installed on the upper end of shell, the first hydraulic pipe joint controls valve core to move right in cavity, first ring groove is equipped in the right end of valve core, second ring groove corresponding with first ring groove is equipped in head, spring is equipped in head, the left end of spring is in contact with the left end of first ring groove, the right end of spring is in contact with the right end of second ring groove, hollow pipe connected with cavity is equipped in head, the second hydraulic pipe joint connected with hollow pipe is installed on the right end of head, the second hydraulic pipe joint controls valve core to move left.

Description

Technical Field

[0001] This utility model belongs to the field of valve technology, and in particular relates to a high-pressure and corrosion-resistant hydraulic sea valve for deep-sea equipment. Background Technology

[0002] Sea valves, also known as bottom valves or side valves, are specialized valves installed below the waterline on the hull of ships, offshore platforms, or other maritime facilities. Their primary function is to control the flow of seawater between the hull and the outside, serving as a critical safety device in the ship's piping system that directly connects to the external environment. Traditional sea valves typically use cast steel bodies, which have poor corrosion resistance. Due to structural design flaws, they have low nominal pressure and are unsuitable for deep-water environments. While they may function well in shallow waters, they face high pressures of approximately 2-10 MPa at depths of 200-1000 meters, potentially leading to structural deformation, valve jamming, and product failure. Furthermore, traditional sea valves are usually operated by handwheels, which are laborious and slow. Utility Model Content

[0003] In view of the above situation and to overcome the defects of the existing technology, the purpose of this utility model is to provide a high-pressure and corrosion-resistant hydraulic sea valve for deep-sea equipment, so as to solve the problems of poor structural stability and laborious operation of existing sea valves in deep sea.

[0004] The technical solution to the technical problem is as follows: The housing includes a shell, a cap fixed to the right end of the shell, an inlet pipe connected to the left end of the shell, an outlet pipe connected to the inlet pipe at the front end of the shell, a cavity inside the shell, a valve core slidably connected to the cavity, the valve core controlling the opening or closing of the inlet pipe, a first hydraulic pipe connector connected to the cavity at the upper end of the shell, the first hydraulic pipe connector controlling the valve core to move to the right within the cavity, a first annular groove at the right end of the valve core, a second annular groove corresponding to the first annular groove inside the cap, a spring inside the cap, the left end of the spring contacting the left end of the first annular groove, the right end of the spring contacting the right end of the second annular groove, a hollow tube connected to the cavity inside the cap, and a second hydraulic pipe connector connected to the hollow tube installed at the right end of the cap, the second hydraulic pipe connector controlling the valve core to move to the left.

[0005] Preferably, a first sealing ring is installed between the housing and the end cap.

[0006] Preferably, a first retaining ring and a second sealing ring are installed inside the housing, and the first retaining ring and the second sealing ring correspond to the valve core, respectively.

[0007] Preferably, a second retaining ring and a third sealing ring are installed inside the housing, located in the middle of the valve core.

[0008] Preferably, the first annular groove and the second annular groove are on the same axis, the width of the first annular groove and the width of the second annular groove are the same, and the depth of the first annular groove is less than the depth of the second annular groove.

[0009] Preferably, the valve core is fitted with a gasket located at the left end of the first annular groove, and the gasket is in contact with the left end of the spring.

[0010] This invention offers the following advantages over traditional equipment: 1) It features a compact structure, occupies less space, and uses hydraulic control to move the valve core left and right to open or close it, ensuring safety and reliability. Combined with a spring structure, it enables rapid valve closure, saving time, reducing manpower, and making it convenient and practical. 2) The sealing ring and retaining ring offer high sealing reliability and increased resistance to contamination, effectively extending the product's service life. 3) All metal parts in this invention are made of 316L stainless steel. 316L is an ultra-low carbon austenitic stainless steel, which has superior resistance to chloride pitting and crevice corrosion compared to ordinary 316 stainless steel. It is ideal for long-term use in highly corrosive seawater. Based on the 316L material and robust structural design, the product can withstand high pressure at depths up to 1000 meters, ensuring its long service life. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the front view of this utility model; Figure 2 yes Figure 1 A schematic diagram of the AA section view; Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model.

[0012] Reference numerals: 1. Shell; 2. End cap; 3. Inlet pipe; 4. Outlet pipe; 5. Cavity; 6. Valve core; 7. First hydraulic pipe joint; 8. First annular groove; 9. Second annular groove; 10. Spring; 11. Hollow tube; 12. Second hydraulic pipe joint; 13. First sealing ring; 14. Second sealing ring; 15. Third sealing ring. Detailed Implementation

[0013] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Depend on Figures 1 to 3Provided is a high-pressure and corrosion-resistant hydraulic sea valve for deep-sea equipment, comprising a housing 1, a head 2 fixed to the right end of the housing 1, an inlet pipe 3 connected to the left end of the housing 1, an outlet pipe 4 connected to the inlet pipe 3 at the front end of the housing 1, a cavity 5 inside the housing 1, a valve core 6 slidably connected to the cavity 5, the valve core 6 controlling the opening or closing of the inlet pipe 3, and a first hydraulic pipe connector 7 connected to the cavity 5 installed at the upper end of the housing 1, the first hydraulic pipe connector 7 controlling the valve core 6 within the cavity. The valve core 6 moves to the right. The right end of the valve core 6 is provided with a first annular groove 8. The end cap 2 is provided with a second annular groove 9 corresponding to the first annular groove 8. The end cap 2 is provided with a spring 10. The left end of the spring 10 contacts the left end of the first annular groove 8, and the right end of the spring 10 contacts the right end of the second annular groove 9. The end cap 2 is provided with a hollow tube 11 that communicates with the cavity 5. The right end of the end cap 2 is equipped with a second hydraulic pipe joint 12 that communicates with the hollow pipe 11. The second hydraulic pipe joint 12 controls the valve core 6 to move to the left.

[0015] To ensure the airtightness between the housing 1 and the end cap 2, a first sealing ring 13 is installed between the housing 1 and the end cap 2.

[0016] To prevent the first hydraulic pipe joint 7 and the second hydraulic pipe joint 12 from connecting and to ensure the sealing of the valve core 6, a first retaining ring and a second sealing ring 14 are installed inside the housing 1 and located in the cavity 5. The first retaining ring and the second sealing ring 14 correspond to the valve core 6.

[0017] To prevent seawater from entering the cavity 5, a second retaining ring and a third sealing ring 15 are installed inside the housing 1, located in the middle of the valve core 6.

[0018] The first annular groove 8 and the second annular groove 9 are on the same axis, the width of the first annular groove 8 and the width of the second annular groove 9 are the same, and the depth of the first annular groove 8 is less than the depth of the second annular groove 9.

[0019] The valve core 6 is equipped with a gasket located at the left end of the first annular groove 8, and the gasket is in contact with the left end of the spring 10.

[0020] When this utility model is in use, when seawater needs to be injected into the hull, the first hydraulic pipe joint 7 is activated, and hydraulic oil is injected into the cavity 5 on the left side of the valve core 6. The first hydraulic pipe joint 7 is in a pressurized state, and at the same time, the second hydraulic pipe joint 12 is in a depressurized state. At this time, the pressurized hydraulic oil of the first hydraulic pipe joint 7 pushes the valve core 6 to slide to the right in the cavity 5, the spring 10 is in a compressed state, the left end of the valve core 6 is separated from the water inlet pipe 3, the valve core 6 is opened, the water inlet pipe 3 is in an open state, the water inlet pipe 3 is connected to the water outlet pipe 4, and then the seawater can flow into the hull through the water inlet pipe 3 and the water outlet pipe 4. When it is necessary to stop the injection of seawater into the hull, the second hydraulic pipe connector 12 is activated. Hydraulic oil is injected into the cavity 5 on the right side of the valve core 6 through the hollow pipe 11. The second hydraulic pipe connector 12 is in a pressurized state, while the first hydraulic pipe connector 7 is in a depressurized state. At this time, the pressurized hydraulic oil from the second hydraulic pipe connector 12 pushes the valve core 6 to slide to the left within the cavity 5. Under the reset action of the spring 10, the spring 10 synchronously pushes the valve core 6 to slide to the left to reset, improving the closing efficiency of the valve core 6. When it is found that the left end is completely blocked by the water inlet pipe 3, the valve core 6 closes, and the water inlet pipe 3 is in a closed state, preventing seawater from entering the hull. Throughout the entire opening and closing process, the valve core's response time is no more than 5 seconds, allowing for rapid response and reducing manpower. A first connector sealing ring corresponding to the first hydraulic pipe connector 7 is installed on the shell 1, and a second connector sealing ring corresponding to the second hydraulic pipe connector 12 is installed on the end cap 2, ensuring the sealing performance of the first hydraulic pipe connector 7 and the second hydraulic pipe connector 12.

[0021] In addition, the housing 1, valve core 6, end cap 2, first hydraulic pipe joint 7, and second hydraulic pipe joint 12 are all made of 316L material, which has good corrosion resistance, optimized structural design, increased product strength, high pressure resistance, and adaptability to deep-sea environment.

[0022] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A high pressure resistant corrosion resistant hydraulic sea valve for deep sea equipment, characterized by, Includes a housing (1), a cap (2) fixed to the right end of the housing (1), a water inlet pipe (3) connected to the left end of the housing (1), a water outlet pipe (4) connected to the water inlet pipe (3) at the front end of the housing (1), a cavity (5) inside the housing (1), a valve core (6) slidably connected to the cavity (5), the valve core (6) controls the opening or closing of the water inlet pipe (3), a first hydraulic pipe joint (7) connected to the cavity (5) is installed at the upper end of the housing (1), the first hydraulic pipe joint (7) controls the valve core (6) to move to the right inside the cavity (5), the valve core (6) The right end is provided with a first annular groove (8), and the end cap (2) is provided with a second annular groove (9) corresponding to the first annular groove (8). The end cap (2) is provided with a spring (10), the left end of the spring (10) is in contact with the left end of the first annular groove (8), and the right end of the spring (10) is in contact with the right end of the second annular groove (9). The end cap (2) is provided with a hollow tube (11) connected to the cavity (5). The right end of the end cap (2) is provided with a second hydraulic pipe joint (12) connected to the hollow pipe (11). The second hydraulic pipe joint (12) controls the valve core (6) to move to the left.

2. The high pressure resistant and corrosion resistant hydraulic through sea valve for deep sea equipment according to claim 1, characterized in that, A first sealing ring (13) is installed between the housing (1) and the end cap (2).

3. The high pressure resistant and corrosion resistant hydraulic through-hull valve for deep-sea equipment according to claim 1, characterized in that, The housing (1) is equipped with a first retaining ring and a second sealing ring (14) located in the cavity (5), and the first retaining ring and the second sealing ring (14) correspond to the valve core (6).

4. The high pressure resistant and corrosion resistant hydraulic through-hull valve for deep-sea equipment according to claim 1, characterized in that, The housing (1) is equipped with a second retaining ring and a third sealing ring (15) located in the middle of the valve core (6).

5. The high pressure resistant and corrosion resistant hydraulic through-hull valve for deep-sea equipment according to claim 1, characterized in that, The first annular groove (8) and the second annular groove (9) are on the same axis. The widths of the first annular groove (8) and the second annular groove (9) are the same, and the depth of the first annular groove (8) is less than the depth of the second annular groove (9).

Images